Hokuetsu AIRMAN PDS185S-6EZ1 Instruction Manual page 31

3.4.6 Air bleeding in fuel line
Should the machine stop due to fuel shortage, perform air bleeding according to the following steps.
C
A

Tighten the air bleeding plug firmly to the specified torque. Loosening of the air bleeding plug may
cause fuel leakage.
3. Operation
<Procedures>
B
1. Refuel.
2. Turn the CONTROL POWER switch to the
position, and then activate the electromagnet pump.
3. Loosen the air bleeding plug [B] of the fuel filter
element [A] and loosen the priming pump [C], push
the priming pump back and forth until fuel comes out
(more than 20 times).
4. After air bleeding is completed, tighten the air
bleeding plug [B] and push the priming pump [C]
back and forth until the fuel filter element [A] is filled
with fuel (more than10 times).
5. After waiting about 1 minute, loosen air bleeding
plug [B] to bleed air from fuel filter element [A].
6. Repeat the above procedures 3. to 5. till air does not
come out from air bleeding plug [B].
7. Finally, tighten both the air bleeding plug [B] and the
A180824
priming pump [C], turn the CONTROL POWER
switch to the
surrounding fuel.
Air bleeding plug tightening torque: 88.5lb・in.

For details, refer to the engine operation manual.
3-15
position, and then wipe off the